1 /*
2  * TLS v1.0/v1.1/v1.2 server (RFC 2246, RFC 4346, RFC 5246)
3  * Copyright (c) 2006-2011, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8 
9 #include "utils/includes.h"
10 
11 #include "utils/common.h"
12 #include "crypto/sha1.h"
13 #include "tls/tls.h"
14 #include "tls/tlsv1_common.h"
15 #include "tls/tlsv1_record.h"
16 #include "tls/tlsv1_server.h"
17 #include "tls/tlsv1_server_i.h"
18 
19 /* TODO:
20  * Support for a message fragmented across several records (RFC 2246, 6.2.1)
21  */
22 
23 
tlsv1_server_alert(struct tlsv1_server * conn,u8 level,u8 description)24 void tlsv1_server_alert(struct tlsv1_server *conn, u8 level, u8 description)
25 {
26 	conn->alert_level = level;
27 	conn->alert_description = description;
28 }
29 
30 
tlsv1_server_derive_keys(struct tlsv1_server * conn,const u8 * pre_master_secret,size_t pre_master_secret_len)31 int tlsv1_server_derive_keys(struct tlsv1_server *conn,
32 			     const u8 *pre_master_secret,
33 			     size_t pre_master_secret_len)
34 {
35 	u8 seed[2 * TLS_RANDOM_LEN];
36 	u8 key_block[TLS_MAX_KEY_BLOCK_LEN];
37 	u8 *pos;
38 	size_t key_block_len;
39 
40 	if (pre_master_secret) {
41 		wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: pre_master_secret",
42 				pre_master_secret, pre_master_secret_len);
43 		os_memcpy(seed, conn->client_random, TLS_RANDOM_LEN);
44 		os_memcpy(seed + TLS_RANDOM_LEN, conn->server_random,
45 			  TLS_RANDOM_LEN);
46 		if (tls_prf(conn->rl.tls_version,
47 			    pre_master_secret, pre_master_secret_len,
48 			    "master secret", seed, 2 * TLS_RANDOM_LEN,
49 			    conn->master_secret, TLS_MASTER_SECRET_LEN)) {
50 			wpa_printf(MSG_DEBUG, "TLSv1: Failed to derive "
51 				   "master_secret");
52 			return -1;
53 		}
54 		wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: master_secret",
55 				conn->master_secret, TLS_MASTER_SECRET_LEN);
56 	}
57 
58 	os_memcpy(seed, conn->server_random, TLS_RANDOM_LEN);
59 	os_memcpy(seed + TLS_RANDOM_LEN, conn->client_random, TLS_RANDOM_LEN);
60 	key_block_len = 2 * (conn->rl.hash_size + conn->rl.key_material_len +
61 			     conn->rl.iv_size);
62 	if (tls_prf(conn->rl.tls_version,
63 		    conn->master_secret, TLS_MASTER_SECRET_LEN,
64 		    "key expansion", seed, 2 * TLS_RANDOM_LEN,
65 		    key_block, key_block_len)) {
66 		wpa_printf(MSG_DEBUG, "TLSv1: Failed to derive key_block");
67 		return -1;
68 	}
69 	wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: key_block",
70 			key_block, key_block_len);
71 
72 	pos = key_block;
73 
74 	/* client_write_MAC_secret */
75 	os_memcpy(conn->rl.read_mac_secret, pos, conn->rl.hash_size);
76 	pos += conn->rl.hash_size;
77 	/* server_write_MAC_secret */
78 	os_memcpy(conn->rl.write_mac_secret, pos, conn->rl.hash_size);
79 	pos += conn->rl.hash_size;
80 
81 	/* client_write_key */
82 	os_memcpy(conn->rl.read_key, pos, conn->rl.key_material_len);
83 	pos += conn->rl.key_material_len;
84 	/* server_write_key */
85 	os_memcpy(conn->rl.write_key, pos, conn->rl.key_material_len);
86 	pos += conn->rl.key_material_len;
87 
88 	/* client_write_IV */
89 	os_memcpy(conn->rl.read_iv, pos, conn->rl.iv_size);
90 	pos += conn->rl.iv_size;
91 	/* server_write_IV */
92 	os_memcpy(conn->rl.write_iv, pos, conn->rl.iv_size);
93 	pos += conn->rl.iv_size;
94 
95 	return 0;
96 }
97 
98 
99 /**
100  * tlsv1_server_handshake - Process TLS handshake
101  * @conn: TLSv1 server connection data from tlsv1_server_init()
102  * @in_data: Input data from TLS peer
103  * @in_len: Input data length
104  * @out_len: Length of the output buffer.
105  * Returns: Pointer to output data, %NULL on failure
106  */
tlsv1_server_handshake(struct tlsv1_server * conn,const u8 * in_data,size_t in_len,size_t * out_len)107 u8 * tlsv1_server_handshake(struct tlsv1_server *conn,
108 			    const u8 *in_data, size_t in_len,
109 			    size_t *out_len)
110 {
111 	const u8 *pos, *end;
112 	u8 *msg = NULL, *in_msg, *in_pos, *in_end, alert, ct;
113 	size_t in_msg_len;
114 	int used;
115 
116 	if (in_data == NULL || in_len == 0) {
117 		wpa_printf(MSG_DEBUG, "TLSv1: No input data to server");
118 		return NULL;
119 	}
120 
121 	pos = in_data;
122 	end = in_data + in_len;
123 	in_msg = os_malloc(in_len);
124 	if (in_msg == NULL)
125 		return NULL;
126 
127 	/* Each received packet may include multiple records */
128 	while (pos < end) {
129 		in_msg_len = in_len;
130 		used = tlsv1_record_receive(&conn->rl, pos, end - pos,
131 					    in_msg, &in_msg_len, &alert);
132 		if (used < 0) {
133 			wpa_printf(MSG_DEBUG, "TLSv1: Processing received "
134 				   "record failed");
135 			tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);
136 			goto failed;
137 		}
138 		if (used == 0) {
139 			/* need more data */
140 			wpa_printf(MSG_DEBUG, "TLSv1: Partial processing not "
141 				   "yet supported");
142 			tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);
143 			goto failed;
144 		}
145 		ct = pos[0];
146 
147 		in_pos = in_msg;
148 		in_end = in_msg + in_msg_len;
149 
150 		/* Each received record may include multiple messages of the
151 		 * same ContentType. */
152 		while (in_pos < in_end) {
153 			in_msg_len = in_end - in_pos;
154 			if (tlsv1_server_process_handshake(conn, ct, in_pos,
155 							   &in_msg_len) < 0)
156 				goto failed;
157 			in_pos += in_msg_len;
158 		}
159 
160 		pos += used;
161 	}
162 
163 	os_free(in_msg);
164 	in_msg = NULL;
165 
166 	msg = tlsv1_server_handshake_write(conn, out_len);
167 
168 failed:
169 	os_free(in_msg);
170 	if (conn->alert_level) {
171 		if (conn->state == FAILED) {
172 			/* Avoid alert loops */
173 			wpa_printf(MSG_DEBUG, "TLSv1: Drop alert loop");
174 			os_free(msg);
175 			return NULL;
176 		}
177 		conn->state = FAILED;
178 		os_free(msg);
179 		msg = tlsv1_server_send_alert(conn, conn->alert_level,
180 					      conn->alert_description,
181 					      out_len);
182 	}
183 
184 	return msg;
185 }
186 
187 
188 /**
189  * tlsv1_server_encrypt - Encrypt data into TLS tunnel
190  * @conn: TLSv1 server connection data from tlsv1_server_init()
191  * @in_data: Pointer to plaintext data to be encrypted
192  * @in_len: Input buffer length
193  * @out_data: Pointer to output buffer (encrypted TLS data)
194  * @out_len: Maximum out_data length
195  * Returns: Number of bytes written to out_data, -1 on failure
196  *
197  * This function is used after TLS handshake has been completed successfully to
198  * send data in the encrypted tunnel.
199  */
tlsv1_server_encrypt(struct tlsv1_server * conn,const u8 * in_data,size_t in_len,u8 * out_data,size_t out_len)200 int tlsv1_server_encrypt(struct tlsv1_server *conn,
201 			 const u8 *in_data, size_t in_len,
202 			 u8 *out_data, size_t out_len)
203 {
204 	size_t rlen;
205 
206 	wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: Plaintext AppData",
207 			in_data, in_len);
208 
209 	if (tlsv1_record_send(&conn->rl, TLS_CONTENT_TYPE_APPLICATION_DATA,
210 			      out_data, out_len, in_data, in_len, &rlen) < 0) {
211 		wpa_printf(MSG_DEBUG, "TLSv1: Failed to create a record");
212 		tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
213 				   TLS_ALERT_INTERNAL_ERROR);
214 		return -1;
215 	}
216 
217 	return rlen;
218 }
219 
220 
221 /**
222  * tlsv1_server_decrypt - Decrypt data from TLS tunnel
223  * @conn: TLSv1 server connection data from tlsv1_server_init()
224  * @in_data: Pointer to input buffer (encrypted TLS data)
225  * @in_len: Input buffer length
226  * @out_data: Pointer to output buffer (decrypted data from TLS tunnel)
227  * @out_len: Maximum out_data length
228  * Returns: Number of bytes written to out_data, -1 on failure
229  *
230  * This function is used after TLS handshake has been completed successfully to
231  * receive data from the encrypted tunnel.
232  */
tlsv1_server_decrypt(struct tlsv1_server * conn,const u8 * in_data,size_t in_len,u8 * out_data,size_t out_len)233 int tlsv1_server_decrypt(struct tlsv1_server *conn,
234 			 const u8 *in_data, size_t in_len,
235 			 u8 *out_data, size_t out_len)
236 {
237 	const u8 *in_end, *pos;
238 	int used;
239 	u8 alert, *out_end, *out_pos, ct;
240 	size_t olen;
241 
242 	pos = in_data;
243 	in_end = in_data + in_len;
244 	out_pos = out_data;
245 	out_end = out_data + out_len;
246 
247 	while (pos < in_end) {
248 		ct = pos[0];
249 		olen = out_end - out_pos;
250 		used = tlsv1_record_receive(&conn->rl, pos, in_end - pos,
251 					    out_pos, &olen, &alert);
252 		if (used < 0) {
253 			wpa_printf(MSG_DEBUG, "TLSv1: Record layer processing "
254 				   "failed");
255 			tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);
256 			return -1;
257 		}
258 		if (used == 0) {
259 			/* need more data */
260 			wpa_printf(MSG_DEBUG, "TLSv1: Partial processing not "
261 				   "yet supported");
262 			tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);
263 			return -1;
264 		}
265 
266 		if (ct == TLS_CONTENT_TYPE_ALERT) {
267 			if (olen < 2) {
268 				wpa_printf(MSG_DEBUG, "TLSv1: Alert "
269 					   "underflow");
270 				tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
271 						   TLS_ALERT_DECODE_ERROR);
272 				return -1;
273 			}
274 			wpa_printf(MSG_DEBUG, "TLSv1: Received alert %d:%d",
275 				   out_pos[0], out_pos[1]);
276 			if (out_pos[0] == TLS_ALERT_LEVEL_WARNING) {
277 				/* Continue processing */
278 				pos += used;
279 				continue;
280 			}
281 
282 			tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
283 					   out_pos[1]);
284 			return -1;
285 		}
286 
287 		if (ct != TLS_CONTENT_TYPE_APPLICATION_DATA) {
288 			wpa_printf(MSG_DEBUG, "TLSv1: Unexpected content type "
289 				   "0x%x", pos[0]);
290 			tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
291 					   TLS_ALERT_UNEXPECTED_MESSAGE);
292 			return -1;
293 		}
294 
295 		out_pos += olen;
296 		if (out_pos > out_end) {
297 			wpa_printf(MSG_DEBUG, "TLSv1: Buffer not large enough "
298 				   "for processing the received record");
299 			tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
300 					   TLS_ALERT_INTERNAL_ERROR);
301 			return -1;
302 		}
303 
304 		pos += used;
305 	}
306 
307 	return out_pos - out_data;
308 }
309 
310 
311 /**
312  * tlsv1_server_global_init - Initialize TLSv1 server
313  * Returns: 0 on success, -1 on failure
314  *
315  * This function must be called before using any other TLSv1 server functions.
316  */
tlsv1_server_global_init(void)317 int tlsv1_server_global_init(void)
318 {
319 	return crypto_global_init();
320 }
321 
322 
323 /**
324  * tlsv1_server_global_deinit - Deinitialize TLSv1 server
325  *
326  * This function can be used to deinitialize the TLSv1 server that was
327  * initialized by calling tlsv1_server_global_init(). No TLSv1 server functions
328  * can be called after this before calling tlsv1_server_global_init() again.
329  */
tlsv1_server_global_deinit(void)330 void tlsv1_server_global_deinit(void)
331 {
332 	crypto_global_deinit();
333 }
334 
335 
336 /**
337  * tlsv1_server_init - Initialize TLSv1 server connection
338  * @cred: Pointer to server credentials from tlsv1_server_cred_alloc()
339  * Returns: Pointer to TLSv1 server connection data or %NULL on failure
340  */
tlsv1_server_init(struct tlsv1_credentials * cred)341 struct tlsv1_server * tlsv1_server_init(struct tlsv1_credentials *cred)
342 {
343 	struct tlsv1_server *conn;
344 	size_t count;
345 	u16 *suites;
346 
347 	conn = (struct tlsv1_server *)os_zalloc(sizeof(*conn));
348 	if (conn == NULL)
349 		return NULL;
350 
351 	conn->cred = cred;
352 
353 	conn->state = CLIENT_HELLO;
354 
355 	if (tls_verify_hash_init(&conn->verify) < 0) {
356 		wpa_printf(MSG_DEBUG, "TLSv1: Failed to initialize verify "
357 			   "hash");
358 		os_free(conn);
359 		return NULL;
360 	}
361 
362 	count = 0;
363 	suites = conn->cipher_suites;
364 	suites[count++] = TLS_RSA_WITH_AES_256_CBC_SHA;
365 	suites[count++] = TLS_RSA_WITH_AES_128_CBC_SHA;
366 #ifdef CONFIG_DES3
367 	suites[count++] = TLS_RSA_WITH_3DES_EDE_CBC_SHA;
368 #endif
369 	suites[count++] = TLS_RSA_WITH_RC4_128_SHA;
370 	suites[count++] = TLS_RSA_WITH_RC4_128_MD5;
371 	conn->num_cipher_suites = count;
372 
373 	return conn;
374 }
375 
376 
tlsv1_server_clear_data(struct tlsv1_server * conn)377 static void tlsv1_server_clear_data(struct tlsv1_server *conn)
378 {
379 	tlsv1_record_set_cipher_suite(&conn->rl, TLS_NULL_WITH_NULL_NULL);
380 	tlsv1_record_change_write_cipher(&conn->rl);
381 	tlsv1_record_change_read_cipher(&conn->rl);
382 	tls_verify_hash_free(&conn->verify);
383 
384 	crypto_public_key_free(conn->client_rsa_key);
385 	conn->client_rsa_key = NULL;
386 
387 	os_free(conn->session_ticket);
388 	conn->session_ticket = NULL;
389 	conn->session_ticket_len = 0;
390 	conn->use_session_ticket = 0;
391 
392 	os_free(conn->dh_secret);
393 	conn->dh_secret = NULL;
394 	conn->dh_secret_len = 0;
395 }
396 
397 
398 /**
399  * tlsv1_server_deinit - Deinitialize TLSv1 server connection
400  * @conn: TLSv1 server connection data from tlsv1_server_init()
401  */
tlsv1_server_deinit(struct tlsv1_server * conn)402 void tlsv1_server_deinit(struct tlsv1_server *conn)
403 {
404 	tlsv1_server_clear_data(conn);
405 	os_free(conn);
406 }
407 
408 
409 /**
410  * tlsv1_server_established - Check whether connection has been established
411  * @conn: TLSv1 server connection data from tlsv1_server_init()
412  * Returns: 1 if connection is established, 0 if not
413  */
tlsv1_server_established(struct tlsv1_server * conn)414 int tlsv1_server_established(struct tlsv1_server *conn)
415 {
416 	return conn->state == ESTABLISHED;
417 }
418 
419 
420 /**
421  * tlsv1_server_prf - Use TLS-PRF to derive keying material
422  * @conn: TLSv1 server connection data from tlsv1_server_init()
423  * @label: Label (e.g., description of the key) for PRF
424  * @server_random_first: seed is 0 = client_random|server_random,
425  * 1 = server_random|client_random
426  * @out: Buffer for output data from TLS-PRF
427  * @out_len: Length of the output buffer
428  * Returns: 0 on success, -1 on failure
429  */
tlsv1_server_prf(struct tlsv1_server * conn,const char * label,int server_random_first,u8 * out,size_t out_len)430 int tlsv1_server_prf(struct tlsv1_server *conn, const char *label,
431 		     int server_random_first, u8 *out, size_t out_len)
432 {
433 	u8 seed[2 * TLS_RANDOM_LEN];
434 
435 	if (conn->state != ESTABLISHED)
436 		return -1;
437 
438 	if (server_random_first) {
439 		os_memcpy(seed, conn->server_random, TLS_RANDOM_LEN);
440 		os_memcpy(seed + TLS_RANDOM_LEN, conn->client_random,
441 			  TLS_RANDOM_LEN);
442 	} else {
443 		os_memcpy(seed, conn->client_random, TLS_RANDOM_LEN);
444 		os_memcpy(seed + TLS_RANDOM_LEN, conn->server_random,
445 			  TLS_RANDOM_LEN);
446 	}
447 
448 	return tls_prf(conn->rl.tls_version,
449 		       conn->master_secret, TLS_MASTER_SECRET_LEN,
450 		       label, seed, 2 * TLS_RANDOM_LEN, out, out_len);
451 }
452 
453 
454 /**
455  * tlsv1_server_get_cipher - Get current cipher name
456  * @conn: TLSv1 server connection data from tlsv1_server_init()
457  * @buf: Buffer for the cipher name
458  * @buflen: buf size
459  * Returns: 0 on success, -1 on failure
460  *
461  * Get the name of the currently used cipher.
462  */
tlsv1_server_get_cipher(struct tlsv1_server * conn,char * buf,size_t buflen)463 int tlsv1_server_get_cipher(struct tlsv1_server *conn, char *buf,
464 			    size_t buflen)
465 {
466 #ifndef ESPRESSIF_USE
467     char *cipher;
468 
469 	switch (conn->rl.cipher_suite) {
470 	case TLS_RSA_WITH_RC4_128_MD5:
471 		cipher = "RC4-MD5";
472 		break;
473 	case TLS_RSA_WITH_RC4_128_SHA:
474 		cipher = "RC4-SHA";
475 		break;
476 #ifdef CONFIG_DES
477 	case TLS_RSA_WITH_DES_CBC_SHA:
478 		cipher = "DES-CBC-SHA";
479 		break;
480 #endif
481 #ifdef CONFIG_DES3
482 	case TLS_RSA_WITH_3DES_EDE_CBC_SHA:
483 		cipher = "DES-CBC3-SHA";
484 		break;
485 #endif
486 	case TLS_DH_anon_WITH_AES_128_CBC_SHA:
487 		cipher = "ADH-AES-128-SHA";
488 		break;
489 	case TLS_RSA_WITH_AES_256_CBC_SHA:
490 		cipher = "AES-256-SHA";
491 		break;
492 	case TLS_RSA_WITH_AES_128_CBC_SHA:
493 		cipher = "AES-128-SHA";
494 		break;
495 	default:
496 		return -1;
497 	}
498 
499 	//if (os_strlcpy(buf, cipher, buflen) >= buflen)
500 	//	return -1;
501 
502 	os_memcpy((u8 *)buf, (u8 *)cipher, buflen);
503 
504 	return 0;
505 #else
506     char cipher[20];
507 
508     switch (conn->rl.cipher_suite) {
509         case TLS_RSA_WITH_RC4_128_MD5:
510 		    strcpy(cipher, "RC4-MD5");
511 		    break;
512         case TLS_RSA_WITH_RC4_128_SHA:
513             strcpy(cipher, "RC4-SHA");
514             break;
515         case TLS_RSA_WITH_DES_CBC_SHA:
516             strcpy(cipher, "DES-CBC-SHA");
517             break;
518         case TLS_RSA_WITH_3DES_EDE_CBC_SHA:
519             strcpy(cipher, "DES-CBC3-SHA");
520             break;
521         case TLS_DH_anon_WITH_AES_128_CBC_SHA:
522             strcpy(cipher, "ADH-AES-128-SHA");
523             break;
524         case TLS_RSA_WITH_AES_256_CBC_SHA:
525             strcpy(cipher, "AES-256-SHA");
526             break;
527         case TLS_RSA_WITH_AES_128_CBC_SHA:
528             strcpy(cipher, "AES-128-SHA");
529             break;
530         default:
531             return -1;
532 	}
533     os_memcpy((u8 *)buf, (u8 *)cipher, buflen);
534 
535     return 0;
536 #endif
537 }
538 
539 
540 /**
541  * tlsv1_server_shutdown - Shutdown TLS connection
542  * @conn: TLSv1 server connection data from tlsv1_server_init()
543  * Returns: 0 on success, -1 on failure
544  */
tlsv1_server_shutdown(struct tlsv1_server * conn)545 int tlsv1_server_shutdown(struct tlsv1_server *conn)
546 {
547 	conn->state = CLIENT_HELLO;
548 
549 	if (tls_verify_hash_init(&conn->verify) < 0) {
550 		wpa_printf(MSG_DEBUG, "TLSv1: Failed to re-initialize verify "
551 			   "hash");
552 		return -1;
553 	}
554 
555 	tlsv1_server_clear_data(conn);
556 
557 	return 0;
558 }
559 
560 
561 /**
562  * tlsv1_server_resumed - Was session resumption used
563  * @conn: TLSv1 server connection data from tlsv1_server_init()
564  * Returns: 1 if current session used session resumption, 0 if not
565  */
tlsv1_server_resumed(struct tlsv1_server * conn)566 int tlsv1_server_resumed(struct tlsv1_server *conn)
567 {
568 	return 0;
569 }
570 
571 
572 /**
573  * tlsv1_server_get_random - Get random data from TLS connection
574  * @conn: TLSv1 server connection data from tlsv1_server_init()
575  * @keys: Structure of random data (filled on success)
576  * Returns: 0 on success, -1 on failure
577  */
tlsv1_server_get_random(struct tlsv1_server * conn,struct tls_random * keys)578 int tlsv1_server_get_random(struct tlsv1_server *conn, struct tls_random *keys)
579 {
580 	os_memset(keys, 0, sizeof(*keys));
581 	if (conn->state == CLIENT_HELLO)
582 		return -1;
583 
584 	keys->client_random = conn->client_random;
585 	keys->client_random_len = TLS_RANDOM_LEN;
586 
587 	if (conn->state != SERVER_HELLO) {
588 		keys->server_random = conn->server_random;
589 		keys->server_random_len = TLS_RANDOM_LEN;
590 	}
591 
592 	return 0;
593 }
594 
595 
596 /**
597  * tlsv1_server_get_keyblock_size - Get TLS key_block size
598  * @conn: TLSv1 server connection data from tlsv1_server_init()
599  * Returns: Size of the key_block for the negotiated cipher suite or -1 on
600  * failure
601  */
tlsv1_server_get_keyblock_size(struct tlsv1_server * conn)602 int tlsv1_server_get_keyblock_size(struct tlsv1_server *conn)
603 {
604 	if (conn->state == CLIENT_HELLO || conn->state == SERVER_HELLO)
605 		return -1;
606 
607 	return 2 * (conn->rl.hash_size + conn->rl.key_material_len +
608 		    conn->rl.iv_size);
609 }
610 
611 
612 /**
613  * tlsv1_server_set_cipher_list - Configure acceptable cipher suites
614  * @conn: TLSv1 server connection data from tlsv1_server_init()
615  * @ciphers: Zero (TLS_CIPHER_NONE) terminated list of allowed ciphers
616  * (TLS_CIPHER_*).
617  * Returns: 0 on success, -1 on failure
618  */
tlsv1_server_set_cipher_list(struct tlsv1_server * conn,u8 * ciphers)619 int tlsv1_server_set_cipher_list(struct tlsv1_server *conn, u8 *ciphers)
620 {
621 	size_t count;
622 	u16 *suites;
623 
624 	/* TODO: implement proper configuration of cipher suites */
625 	if (ciphers[0] == TLS_CIPHER_ANON_DH_AES128_SHA) {
626 		count = 0;
627 		suites = conn->cipher_suites;
628 		suites[count++] = TLS_RSA_WITH_AES_256_CBC_SHA;
629 		suites[count++] = TLS_RSA_WITH_AES_128_CBC_SHA;
630 		suites[count++] = TLS_RSA_WITH_3DES_EDE_CBC_SHA;
631 		suites[count++] = TLS_RSA_WITH_RC4_128_SHA;
632 		suites[count++] = TLS_RSA_WITH_RC4_128_MD5;
633 		suites[count++] = TLS_DH_anon_WITH_AES_256_CBC_SHA;
634 		suites[count++] = TLS_DH_anon_WITH_AES_128_CBC_SHA;
635 		suites[count++] = TLS_DH_anon_WITH_3DES_EDE_CBC_SHA;
636 		suites[count++] = TLS_DH_anon_WITH_RC4_128_MD5;
637 		suites[count++] = TLS_DH_anon_WITH_DES_CBC_SHA;
638 		conn->num_cipher_suites = count;
639 	}
640 
641 	return 0;
642 }
643 
644 
tlsv1_server_set_verify(struct tlsv1_server * conn,int verify_peer)645 int tlsv1_server_set_verify(struct tlsv1_server *conn, int verify_peer)
646 {
647 	conn->verify_peer = verify_peer;
648 	return 0;
649 }
650 
651 
tlsv1_server_set_session_ticket_cb(struct tlsv1_server * conn,tlsv1_server_session_ticket_cb cb,void * ctx)652 void tlsv1_server_set_session_ticket_cb(struct tlsv1_server *conn,
653 					tlsv1_server_session_ticket_cb cb,
654 					void *ctx)
655 {
656 	wpa_printf(MSG_DEBUG, "TLSv1: SessionTicket callback set %p (ctx %p)",
657 		   cb, ctx);
658 	conn->session_ticket_cb = cb;
659 	conn->session_ticket_cb_ctx = ctx;
660 }
661